marbio {pastecs} | R Documentation

## Several zooplankton taxa measured across a transect

### Description

The `marbio` data frame has 68 rows (stations) and 24 columns (taxonomic zooplankton groups). Abundances are expressed in no per cubic meter of seawater.

### Usage

    data(marbio)

### Format

This data frame contains the following columns giving abundance of:

Acartia
  Acartia clausi - herbivorous
AdultsOfCalanus
  Calanus helgolandicus (adults) - herbivorous
Copepodits1
  Idem (copepodits 1) - omnivorous
Copepodits2
  Idem (copepodits 2) - omnivorous
Copepodits3
  Idem (copepodits 3) - omnivorous
Copepodits4
  Idem (copepodits 4) - omnivorous
Copepodits5
  Idem (copepodits 5) - omnivorous
ClausocalanusA
  Clausocalanus size class A - herbivorous
ClausocalanusB
  Clausocalanus size class B - herbivorous
ClausocalanusC
  Clausocalanus size class C - herbivorous
AdultsOfCentropages
  Centropages tipicus (adults) - omnivorous
JuvenilesOfCentropages
  Centropages typicus (juv.) - omnivorous
Nauplii
  Nauplii of copepods - filter feeders
Oithona
  Oithona sp. - carnivorous
Acanthaires
  Various species of acanthaires - misc
Cladocerans
  Various species of cladocerans - carnivorous
EchinodermsLarvae
  Larvae of echinoderms - filter feeders
DecapodsLarvae
  Larvae of decapods - omnivorous
GasteropodsLarvae
  Larvae of gastropods - filter feeders
EggsOfCrustaceans
  Eggs of crustaceans - misc
Ostracods
  Various species of ostracods - omnivorous
Pteropods
  Various species of pteropods - herbivorous
Siphonophores
  Various species of siphonophores - carnivorous
BellsOfCalycophores
  Bells of calycophores - misc

### Details

This dataset corresponds to a single transect sampled with a plankton net across the Ligurian Sea front in the Mediterranean Sea, between Nice (France) and Calvi (Corsica). The transect extends from the Cap Ferrat (close to Nice) to about 65 km offshore in the direction of Calvi (along a bearing of 123°). 68 regularly spaced samples where collected on this transect. For more information about the water masses and their physico-chemical characteristics, see the marphy dataset.

### Source

Boucher, J., F. Ibanez & L. Prieur (1987) Daily and seasonal variations in the spatial distribution of zooplankton populations in relation to the physical structure in the Ligurian Sea Front. Journal of Marine Research, 45:133-173.

### References

Fromentin, J.-M., F. Ibanez & P. Legendre (1993) A phytosociological method for interpreting plankton data. Marine Ecology Progress Series, 93:285-306.

### See Also

`marphy`

[Package pastecs version 1.3-2 Index]